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Popular Science Monthly May 1900 by J McKeen Cattell PDF

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Preview Popular Science Monthly May 1900 by J McKeen Cattell

Project Gutenberg's Appletons' Popular Science Monthly, May, 1900, by Various This eBook is for the use of anyone anywhere in the United States and most other parts of the world at no cost and with almost no restrictions whatsoever. You may copy it, give it away or re-use it under the terms of the Project Gutenberg License included with this eBook or online at www.gutenberg.org. If you are not located in the United States, you'll have to check the laws of the country where you are located before using this ebook. Title: Appletons' Popular Science Monthly, May, 1900 Vol. 57, May, 1900 to October, 1900 Author: Various Editor: J. McKeen Cattell Release Date: October 28, 2014 [EBook #47219] Language: English Character set encoding: UTF-8 *** START OF THIS PROJECT GUTENBERG EBOOK APPLETONS' POPULAR SCIENCE *** Produced by Greg Bergquist, Charlie Howard, and the Online Distributed Proofreading Team at http://www.pgdp.net (This file was produced from images generously made available by The Internet Archive) Transcriber’s note: Table of Contents added by Transcriber. CONTENTS The Coming Total Eclipse of the Sun 1 The Most Expensive City in the World 16 A Bubble-blowing Insect 23 The Negro Since the Civil War 29 The Birds of the Adirondacks 40 The Structure of Blind Fishes 48 A Hundred Years of Chemistry 59 Mount Tamalpais 69 International Law and the Peace Conference 76 The Fate of the Beagle 86 Science Study and National Character 90 Editor’s Table 99 Fragments of Science 101 Minor Paragraphs 108 Publications Received 111 T T H E P O P U L A R S C IE N C E M O N T H LY EDITED BY J. McKEEN CATTELL VOL. LVII MAY TO OCTOBER, 1900 NEW YORK AND LONDON McCLURE, PHILLIPS AND COMPANY 1900 Copyright, 1900, BY MCCLURE, PHILLIPS AND COMPANY. THE POPULAR SCIENCE MONTHLY AP P L E TONS’ P OP UL AR S CI E NCE MONTHLY. MAY, 1900. THE COMING TOTAL ECLIPSE OF THE SUN. BY FRANK H. BIGELOW, PROFESSOR OF METEOROLOGY, UNITED STATES WEATHER BUREAU. HE circumstance which renders the coming total eclipse of the sun, on May 28, 1900, of special significance to thousands of people who might otherwise entirely overlook the occasion is the fact that the path of the moon’s shadow over the surface of the earth, or the track of the eclipse, is in such a convenient locality—namely, in our Southern States—as to render the places of visibility easily accessible. Instead of being obliged to go to the ends of the earth, at a heavy expenditure of time and money, all the while running 1 the risk of not seeing the eclipsed sun on account of prevailing cloudiness, we are fortunate this time to have the show at home in our own country. While many foreigners will be induced to come to the United States to make observations, it is certain that more people will be in a position to see this eclipse with a minimum amount of trouble than has ever happened before in the history of eclipses, at least since the telescope was invented and careful records of the phenomenon preserved. The track of May 28th enters the United States in southeastern Louisiana; passes over New Orleans, La., centrally; over Mobile, Ala., which is on its southern edge; over Montgomery, Ala., on the northern edge; over Columbus, Ga.; south of Atlanta, Ga., which lies about twenty-five miles to the north of it; near Macon, Milledgeville, and Augusta, Ga., Columbia, S. C., Charlotte, N. C.; over Raleigh, N. C., which is ten miles north of the central line; and over Norfolk, Va., fifteen miles north of the center. The track is about fifty miles wide in all parts, and the duration of the eclipse varies from one minute and twelve seconds near New Orleans to one minute and forty- four seconds near Norfolk, on the central line. These durations diminish from the maximum at the middle of the track to zero at the northern and southern limits of it, so that an observer must be stationed as near the central line as possible in order to see much of the eclipse. The population of several of the above-mentioned cities is at present as follows: New Orleans, 242,000; Mobile, 31,000; Montgomery, 22,000; Columbus, 20,000; Atlanta, 66,000; Raleigh, 13,000; and Norfolk, 35,000. It is evident that with very little exertion more than 500,000 people can see this eclipse. It is most fortunate that the track passes near so many cities, because, with their facilities for the accommodation of visitors, many will be induced to undertake excursions with the purpose of taking in this rare sight, and a little enterprise on the part of railroads and transportation companies might easily increase the numbers. If people will go to a parade, yacht race, or an exposition, and consider themselves paid for their expenses, then surely they will find in this great spectacle of Nature not only an object of wonder and beauty, but also one of peculiar instruction in many important branches of science. All educators who can induce their pupils to make such an expedition will implant a love of astronomy in many impressionable minds which will become a source of pleasure to them for the rest of their lives. Chart I.—Track in the United States of the Total Eclipse of May 28, 1900. (By permission of the United States Weather Bureau.) Out of about seventy eclipses of the sun which have occurred somewhere in the world within the nineteenth century, there have been only eight total eclipses of more or less duration visible on the North American continent. The others happened in places often remote from civilization, and sometimes in entirely inaccessible localities, as over the ocean areas. The difficulty of transporting heavy baggage to the remote parts of Asia, Africa, or South America is such as to preclude all but a few scientists from any effort to observe eclipses. The writer was much impressed with the formidable nature of undertaking to establish eclipse stations in places which are distant from centers of population by his own experience on the West African Eclipse Expedition, sent out by the United States Government, for the eclipse of December 22, 1889, to Cape Ledo, on the west coast of Angola, about seventy miles south of St. Paul de Loanda. Nearly eight months were consumed in the course of the preparations at home and in the voyage out and back. The expedition, it should be said, however, went to Cape Town, South Africa, and halted also at St. Helena, Ascension Island, and Barbados for magnetic and gravity observations, so that all this time should not be charged to the eclipse proper. We sailed in the old frigate Pensacola, the companion to Farragut’s flagship, the Hartford, with Captain Yates. In earlier days Admiral Dewey commanded this ship, and the expedition was fitted out while he was in charge of the Bureau of Equipment at Washington. The same fine courtesy that has become so well known to his countrymen was at that time extended to all the members of the expedition. The cloudiness along the track of the eclipse in the Southern States on the 28th of May, 1900, is evidently a matter of much importance not only for all astronomers, but for non-professional spectators. If it could be foretold, with the same precision as the astronomical data give the time and the place of the occurrence of the eclipse, that the day itself will be fair or cloudy, or that certain portions of the track will be clear while others will be obscured, it would be of great benefit. The cost of these scientific expeditions is very great, since it is necessary to transport many heavy and delicate pieces of apparatus into the field, including telescopes, spectroscopes, polariscopes, and photographic cameras, and set them up in exact position for the day of observation. The expedition to Cape Ledo, West Africa, in 1889, carried out a large amount of material, prepared it for work during the totality, and then entirely lost the sun during the critical moments by a temporary obscuring of the sky through local cloud formations. There had been some clouds at the station during the forenoons for several days preceding the eclipse, but the sky was usually clear and very favorable during the middle of the afternoons. The totality came on at three o’clock, and photographs of the sun were taken at first contact about 1.30 P. M.; clouds thickened, however, and totality was entirely lost, while the sun came out again for the last contact at 4.30 P. M. This was a very trying experience, and of course could not have been avoided by any possible precautions. Some astronomers have thought that the advance of the moon’s shadow is accompanied by a fall in temperature, and that cloudiness is more likely to be produced from this cause. Soon after the West African eclipse Professor Todd, of Amherst College, proposed that more systematic observations be made for the probable state of the sky along eclipse tracks, with the view of at least selecting stations having the most favorable local conditions. The method was tried in Chili, April, 15, 1893, and in Japan, August 8, 1896, with some success. Heretofore the available meteorological records, which were originally taken for other general purposes, had been consulted, and some idea formed of the prevailing tendency to cloudy conditions. In accordance with the improved method, the United States Weather Bureau has been conducting special observations on the cloudiness occurring from May 15th to June 15th in each of the three years 1897, 1898, and 1899, for the morning hours of the eclipse—between 8 A. M. and 9 A. M. A tabular form was sent through the local offices to such observers as were willing to act as volunteers in making these records, and their reports have been studied to discover how the cloudiness behaves along the eclipse track at that season of the year. Each of the three years gives substantially the same conclusion— namely, that there is a maximum of cloudiness near the Atlantic coast in Virginia, extending back into North Carolina, and also near the 2 3 4 Gulf coast in Louisiana and in southern Mississippi, while there is a minimum of cloudiness in eastern Alabama and central Georgia. The following table will serve to make this plain: The Prevailing Cloudiness of the Sky along the Eclipse Track. State. General sky. Sky near the sun. Virginia 40.3 38.0 North Carolina 32.4 29.9 South Carolina 26.4 24.9 Georgia 16.4 14.7 Alabama 18.2 17.7 Mississippi 30.8 29.2 Louisiana 32.9 27.7 The significance of these figures is shown by transferring them to a diagram, given on Chart II, which indicates the average cloudiness prevailing over the several States where they are crossed by the track. The marked depression in the middle portions, especially over Alabama and Georgia, indicates that the stations in these districts make a much better showing than those nearer the coast line. The reasons for this difference are probably many in number, but the chief feature is that the interior of this region, especially over the higher lands of the southern reaches of the Appalachian Mountains, which are from six hundred to one thousand feet above the sea level, is somewhat freer from the moisture flowing inland from the ocean at that season of the year. The table shows also two divisions, one for the “general sky,” wherein the relative cloudiness was noted in every portion of the visible sky, and for the “sky near the sun,” where the observation was confined to the immediate vicinity of the sun. The two records agree almost exactly, except that the sky near the sun averages a little lower than the general sky. This indicates that although the sun will be seen in the morning hour of May 28th, when it is only from thirty to forty degrees above the horizon, yet this is not an unfavorable circumstance. The low altitude, on the other hand, makes it easier for those at the instruments to enjoy a more comfortable observing position than if it were nearer the zenith, where one must look directly upward. Of course, a storm of some kind may occur on that day to modify these general weather conditions and upset all calculations. While the cloud observations suggest that Georgia and Alabama have the best sites for the eclipse, it must be remembered that the duration is about one minute and twenty seconds in Alabama, and one minute and forty seconds in North Carolina. As a gain of twenty seconds in observing time will be considered by many of sufficient importance to take chances on the cloudiness, stations will be selected in North Carolina for that reason, although the probability for minimum cloudiness is twice as good in Georgia and Alabama. The table shows that the chances are only one to six against observers located in these States, while near the coast they are about two to six against them. On the whole, the general result is that observing in this region ought to be successful, because the favorable chances for good weather are above the average at that season of the year. Chart II.—Probable State of the Sky along the Eclipse Track. Average percentage of cloudiness in May and June. On Chart I there are six lines drawn across the track: No. 1 near New Orleans, and No. 6 on the ocean to the east of Norfolk, Va. These represent the places for which the times of the duration are computed in the American Nautical Almanac, with the following results: No. h. m. h. m. m. s. 1. At1 30Greenwich M. T.=7 27.Local M. T. the duration is 1 12.6 2. ” 1 35 ” ” =7 47. ” ” ” ” ” 1 19.6 3. ” 1 40 ” ” =8 05. ” ” ” ” ” 1 26.0 4. ” 1 45 ” ” =8 22. ” ” ” ” ” 1 31.7 5. ” 1 50 ” ” =8 40. ” ” ” ” ” 1 37.0 6. ” 1 55 ” ” =8 54. ” ” ” ” ” 1 41.9 Chart III.—Fifteen Pictures of the Solar Corona, arranged in the Eleven Year Period, to show the Recurrence of Similar Types during this Period. An observer at the intersection of these cross-lines with the central line will see the totality during the intervals given in the table. The mode of the formation of the shadow cones of the moon, called the penumbra for the partial shadow and the umbra for the total shadow, are well illustrated in general works on astronomy, and good geometrical pictures of them can there be found, together with much useful information regarding the subject of eclipses. As we are here concerned chiefly with certain practical points about the eclipse of 1900, it will be well for the reader to consult such works for many details regarding the astronomical features attending an eclipse of the sun which must now be omitted. 5 6 8 Chart IV.—Bigelow’s Forecast of the Corona of May 28, 1900. E, earth’s axis; K, axis of ecliptic; S, axis of sun; C, C, poles of the solar corona. There are many existing theories to account for the phenomenon of the sun’s bright appendage, called the corona, which is visible only during eclipses, on account of the absorbing effects of the earth’s atmosphere on its light. Is it electrical, or is it magnetic? Is it composed of fine stuff ejected from the sun, or of meteoric dust falling upon the sun? Is it merely an optical effect, as some suppose, or is it a portion of the newly discovered radiant matter streaming off to enormous distances into space? The answer to these questions is eagerly sought through observation, photography, and every other possible means, on the occasion of each total eclipse. The efforts of astronomers have thus far secured a series of pictures of the solar corona, which, when compared together, show very distinctly that the corona, as well as the spots, the protuberances, and the faculæ, are going through a series of changes which seem to repeat themselves in the so-called eleven-year period. It has also been proven, with entire distinctness, that the earth’s magnetic field, as marked by the changes in the intensity of the magnetic elements, in the auroral displays, and the earth electric currents show variations which synchronize closely with those observed on the sun; also that the weather elements of pressure, temperature, precipitation, and storm intensity all harmonize with the solar and the earth’s magnetism in the same synchronism. All attempts of scientists to detect any variations in the sunshine which falls upon the tropics have been entirely futile; on the other hand, it has been shown that the magnetic forces having the characteristics just mentioned impinge upon the earth in a direction perpendicular to the plane of the earth’s orbit, just as if the sun, being a magnet, throws out a field of force to the surface of the earth, which, by its variation depending upon the internal workings of the sun, produces the changes just enumerated in the earth’s atmosphere and in its magnetic field, also throughout the planetary system, being, of course, strongest near the sun. The belief is gradually growing among scientists that the earth, the sun, and the planets are all magnetic bodies, and have these bonds of connection between them in addition to the Newtonian gravitation. This is a most fascinating field of research, and, though full of difficulties, yet attracts the attention of many who are convinced that one of the most pressing duties of the hour is to clear up the problems connected with the transmission of energy from the sun to the earth in other forms than the ordinary or sunlight radiation. It is entirely probable that the secular variations of the weather changes from year to year, and even from month to month, are bound up with these solar forces, and that the solution of these questions will carry with them much information of practical use to civilized man. The coronas of the past forty years are shown on Chart III, taken from the report of the eclipse of 1896 (August 9th), by A. Hansky. It arranges the coronas in the eleven-year period so far as the dates at which the eclipses occurred permit this to be done, and by comparing them in vertical lines the similarity is at once seen for the respective quarters of phases of the period. The forecast there given for 1900 is seen to resemble 1867, 1878, and 1889, but it differs in orientation from that on Chart IV, which was prepared by the author. The four coronas on the left in Chart III are taken at the sun-spot maximum, and the appearance is that of total confusion in the structure of the rays; the second and the fourth columns are for the sun’s medium intensity at about halfway between the maximum and the minimum, and they show a system of polar rays taking on structural form, the second column being at a stage of diminishing and the fourth at one of increasing solar activity; the third column gives the corona when the spots are at a minimum of frequency and the sun is in a comparatively quiescent state, wherein the polar rifts are very distinct and the equatorial wings or extensions greatly developed. The successful observation of a solar corona depends upon three conditions: the selection of the instrument, its proper mounting, and the photographic process, regarding each of which a few suggestions will be made. The instruments are divided into two classes, for visual and for photographic work. But in either case the most important feature is the focal length or the size of the telescope. Since the photographic image of the corona will not bear magnifying without dispersing the available light, and thus blurring out the details of the picture, which is the most important feature to retain to the utmost, one can not use a short telescope and at the same time a magnifying eyepiece to enlarge the image by projection on a screen or on a photographic plate. The only alternative in order to get an image of large diameter is to use a long-focus lens. The effect of a difference of focus upon the image of the corona is well shown on Chart V, which gives a small corona (1) taken with a four-foot lens (Barnard), (2) with a fifteen-foot lens (Pickering), and (3) with a forty-foot lens (Schaeberle). The diameter is proportional to the focal length, but the difference of effect upon the details is very important. In the small picture the details of the corona near the sun are completely lost in the general light, while the coronal extensions from the middle latitudes are seen at a great distance from the sun—as much as one million miles; at the same time the polar rifts are distinctly marked, so that the pole or central line from which they bend is readily located. On the second picture the details of the polar rays are better brought out, but the extensions are shortened. In the third the region near the sun’s edge has many interesting details very clearly defined, while all the extensions are gone. It is evident that each lens has its advantage, according to the details sought, and they ought all to be employed in the eclipse. The reproductions on paper by no means do justice to the original negatives, which make the distinctions even more pronounced than shown on Chart V. Chart V.—Relative Images of the Corona as taken with Telescopes ranging from Forty Feet to Four Feet in Focal Length. Some amateur observers have telescopes but no mountings suitable for eclipse work, and many astronomical telescopes have good equatorial mountings at home which are yet unavailable in the field for lack of proper foundations and supports. The ordinary telescope balanced near the center, with the eye end subject to all sorts of motions which may happen through jarring and rough handling in the hurry of shifting photographic plates, makes a very poor eclipse apparatus. All telescopes of any length should be held firmly at each end, so as to be perfectly steady, since the least vibration ruins a coronal picture devoted to delicate photographic effects. There are two ways of accomplishing this, and only two. Dispensing with an equatorial mounting, the lens must be set permanently on a base, and 9 10 11 light reflected from a mirror must be utilized, which shall be concentrated on a plate also placed on a fixed base. This is the method employed by Schaeberle in Chili, April 16, 1893, to obtain No. III of Chart V. There is no objection to it if an observer possesses a perfectly plane mirror, which it is very difficult and also expensive to obtain; if the reflecting mirror should be imperfect it would distort the image of the corona. The second method, lacking a good mirror, is to mount the long-focus lens in a tube and point it directly at the sun. A forty-foot lens was thus mounted at Cape Ledo for December 22, 1889, and its action was very satisfactory. Of course, it was a cumbersome arrangement, and could not be employed by a small party. The foundation for the mounting of the forty-foot tube consisted of two casks filled with stones and cement, and set firmly in the ground. These made two good piers, since the narrowing tops of the casks held the bed plates of the telescope as in a vise. A triangle, whose base was parallel to the earth’s axis and having the telescope tube itself for the long side, was fitted with an extension rod for adjustment in altitude on the third side, and the whole was made to revolve on ball bearings. This triangular support was rotated by a side rod of adjustable length, whose end terminated in a sand piston working with a regulating valve. The sand flowed out steadily like an hour-glass, and dropped the tube, keeping it central on the sun. The image was made to follow accurately for twenty minutes without tremor, all the time holding the solar disk tangent to fixed lines. The principle of a revolving triangle and a short piston, taking the place of an expensive reflecting mirror with a delicate clockwork or one carrying a telescope balanced on its center but subject to jars and side motions, is an important assistance in field work on account of its ready adaptability to all sorts of observations. Since time is limited, it is necessary to provide all operations with automatic arrangements as far as possible, by using such an apparatus as that described. What can be applied successfully to a forty-foot lens can serve for shorter telescopes. In combination with spectroscopes, polariscopes, and special instruments for photographing, an immense amount of work can be compressed into the few seconds allowed by mounting them all on such a movable frame as the triangle. The old-fashioned method of putting one observer to one telescope ought to be abandoned. Of course, for a rising sun during the forenoon a modification in the moving support must be employed. This should be such as to cause the objective of the telescope to rise from the ground toward the meridian, and it must be accomplished by attaching a heavy weight which in sinking draws the tube upward. Chart VI.—Tracks of the Eight Total Eclipses of the Sun seen on the North American Continent during the Nineteenth Century. Of the two kinds of photographic plates, the wet and the dry, the dry plates are much more convenient in the field, and are good for certain purposes. The objections to them are that the rough granulations of the gelatin film sometimes overpower the fine details of the corona itself; they burn out very near the disk by over-exposure while the faint outer extensions are being taken. Wet plates having the requisite quickness are harder to prepare, but are smoother and hold the coronal rays better from the base to the outer edge, and there is always plenty of time to give the necessary exposure. The No. 26 Seed plate requires from 0.5 to 2.0 seconds only, generally one second being about right; the wet plate will take the corona in eight seconds or less. The best time of exposure should be tested on a bright star of about the second magnitude, by trial before the eclipse. There is no rule about the photographic focus, except to discover it by a series of exposures at different distances near the supposed point. Eclipse work is a practical matter, and many rough-and-ready methods must necessarily be admitted. A good lens in a wooden light-tight tube, supported at each end, having the motion of the sun, the photographic focal plane carefully determined, the time exposures very short, and, finally, exceedingly slow development of the picture after the eclipse—these form the prime requisites. Expensive telescopes, clockwork on heavy iron piers, reflecting mirrors, and such like apparatus are not needed. Ingenuity in practical details, with great anxiety about the essential matter of the light itself, is what is needed for a successful eclipse expedition. Those persons who have no telescope for viewing the sun, or camera for photographing it, can yet see the corona to great advantage by means of a good opera glass, and indeed this is really the most satisfactory way to thoroughly enjoy the spectacle. The object may be sketched on paper at once or from memory, and this picture may well be of value to astronomy. The tracks of the eight North American eclipses seen since 1800 are shown on Chart VI. It is noted that three have paths very similarly located, and that five run in directions about parallel to one another, but almost at right angles to the first group. This comprises the eclipse of November 30, 1834, duration two minutes; August 7, 1869, two minutes and three quarters; July 29, 1878, two minutes and a half, which stretch from Alaska southeastward in a fan-shape to the South Atlantic coast. The second group contains the tracks June 16, 1806, four minutes and a half; July 17, 1860, three minutes; January 11, 1880 thirty-two seconds; January 1, 1889, two minutes and a quarter; and May 28, 1900, two minutes. These tracks all trend from southwest to northeast, and cross the North American continent in different latitudes, that of May 28, 1900, being the most southerly and of rather short duration; lasting less than two minutes in the United States. The path of the total eclipse of May 28, 1900, after leaving the United States, crosses the North Atlantic Ocean to Coimbra, Portugal, and continues over North Africa to its end at the Red Sea. Stations which are not situated on the path of the totality will see the sun partially eclipsed, in proportion to the distance of the locality from the central line to the northern or the southern limits. Thus New England, New York, the Ohio Valley, and the southern Rocky Mountain districts will see the sun about nine tenths covered; the Lake Region, the lower Missouri Valley, and Southern California will see an eight-tenths eclipse; and the northern Rocky Mountain region about six tenths or seven tenths. The best way to view the partially eclipsed sun is to secure three strips of thin colored glass, one and a half inch wide by five inches long—red, blue, and green; bind them over the eye end of a good opera glass, and adjust focus on the sun. This makes the light safe for the eyes and brings out the spherical aspect of the sun’s ball. The time of the eclipse can be read by interpolating within the lines marked on Chart VII. 12 13 14 15 16 T Chart VII.—The Path of the Total Eclipse of May 28, 1900, with Times of Beginning and Ending at Several Places and the Northern and Southern Limits of the Partial Eclipse. No other eclipse track will occur in this country till June 8, 1918, when one of the first kind will pass from Oregon to Florida, two minutes in duration. Another will occur in New England, January 24, 1925. Eclipses seven minutes in duration will occur in India in 1955, and in Africa in 1973, the longest for a thousand years. The remoteness of the last two, both in time and place, put them out of reckoning for most of us, but those of 1918 and 1925 give additional zest to the approaching eclipse of May 28th, as affording further opportunity for confirming facts and noting differences based upon the observations now made. THE MOST EXPENSIVE CITY IN THE WORLD. BY HON. BIRD S. COLER, COMPTROLLER OF THE CITY OF NEW YORK. HE annual expenses of the city of New York are larger than those of any other municipality in the world, and the financial transactions of a year represent the receipt and expenditure of more than $200,000,000, counting temporary loans, sinking funds, and bond issues. The gross budget of the city for 1899 was $20,000,000 greater than the expenses of the city of London, $18,000,000 in excess of the budget of Paris, and only $1,000,000 less than the combined expenditures of Boston, Chicago, and Philadelphia. The expenses of New York last year for local purposes, exclusive of bond issues, amounted to $19.56 per capita of an estimated population of 3,500,000. The combined annual expenditures of the six largest States in the Union are less than those of the city of New York, and the financial transactions of the latter are equal in amount to one seventh of those of the national Government. The credit of the city, it may be stated at the outset, is second only to that of the Federal Government, and the property owned by the municipality, if sold at market value, would pay the entire funded debt several times over. The consolidation of ninety municipalities with the former city of New York was the culmination of a sentiment so fixed upon an ideal that there had been little careful reckoning of the cost. The municipality, by taking in the extra territory and population, doubled its debt, added less than one fourth to its tangible assets, and increased the cost of local government $15,000,000 a year. This added cost is the price paid by the taxpayers for a sentiment and for haste and carelessness in the work of completing consolidation. The cost of government for the enlarged city was in 1899 approximately $15,000,000 more than the combined expenditures of the various municipalities for the last year of their separate existence. This increase was excessive and altogether unnecessary to the maintenance of thorough and progressive government. The present charter of the city is supposed to provide a large measure of home rule, yet the salary of almost every officer and employee, from the mayor to the doormen of the police stations, is fixed by act of the State Legislature. The former cities of New York and Brooklyn had been so long regulated and governed from Albany that the commissioners who drafted the charter evidently overlooked the fact that a municipality might be trusted to regulate the pay of its own employees. To-day the pay of the school-teachers, policemen, firemen, heads of departments, and chiefs of bureaus is fixed at Albany, where the representatives of the city are in the minority. When the charter was prepared the commissioners agreed that taxation and salaries must be equalized. The members differed in their views on many questions, but they evidently agreed that the way to equalize salaries was to increase the lowest to equal the highest. In extending the benefits of a great corporate government to the many suburban communities included in the consolidation a uniformed policeman, or five or ten of them, at fourteen hundred dollars a year took the place of a town marshal or constable at three hundred dollars a year, and high-priced trained firemen were substituted for unpaid volunteers. This method of equalizing salaries was extended to every section of the city and to every branch of the government. No attempt, apparently, was made to devise some system that would adjust salaries in various localities to local conditions and cost of living. The sentiment in favor of a great city was not disposed to quibble when the cost of maintaining the visible form of municipal government was increased fivefold in much of the outlying territory. Aside from the extension of high-priced municipal service throughout the great area of the consolidated city, many useless offices were created and many salaries fixed at excessive figures. Authority was too much divided. The borough system is expensive, and so far useless. The entire charter is a series of compromises, and every compromise on a salary was at the maximum rate. This method of arranging the expenses of the greater city increased the cost of government beyond the highest estimates of those who had advocated consolidation. The initial cost was further increased by reason of the fact that no precautions were taken to prevent the various municipalities to be united from increasing their bonded and contract indebtedness during the last year of their separate existence. The result of that oversight was that every municipality, the former city of New York included, issued bonds and entered upon contracts with somewhat reckless disregard of the future. In this way a heavy burden of unnecessary expense was added to the legitimate account charged against the consolidated city. 17 18 Greater New York began business in a condition of apparent bankruptcy, because the debts exceeded the constitutional limitation of ten per cent of the assessed value of taxable real estate. To overcome this and to meet the extra expense of government by the new system it was necessary to greatly increase the tax rate. The financial condition of New York on January 1, 1900, was satisfactory except in the matter of current expenses. The gross accepted funded debt on that date was $358,104,307.11, against which there was a sinking fund of $105,435,871.70, leaving a net funded debt of $252,668,435.41. Considered in connection with the wealth of the city, this debt is not excessive. The city of Paris, with smaller available resources, has a debt in excess of $500,000,000. The gross expenditures of the city during 1899, exclusive of permanent improvements, paid for from the proceeds of bonds, were $93,520,082.03, and in 1900 the expenses will be some $3,000,000 less. The total receipts of the city for the same period, from all sources and for all purposes, were approximately $108,000,000. The income was derived from three general sources, taxation yielding $84,000,000. The budget, which represents the money to be raised by taxation, was reduced $9,000,000 by income known as the general fund. The chief items of this were: Excise taxes, $3,600,000; school money from the State, $1,280,883.45; fees of various county and city offices, $246,576.65; interest on taxes and assessments, $979,185.35; and unexpended appropriations, $1,356,786.57. Aside from the revenues classed as the general fund, New York has no income from any source that can be applied to current expenses for the reduction of taxation. The immensely valuable franchises heretofore granted to private corporations yield a revenue to the city that is insignificant, the total collected rarely exceeding $300,000 a year. The gradual reduction of the city debt, except as it is maintained or increased by additional bond issues, is amply provided for by a steadily increasing and protected sinking fund. The total receipts of this fund in 1899 were $15,601,492.50. The Croton water rents, amounting last year to $4,590,502.55, are applied to this fund, as well as the dock and slip rents of $2,362,421.14. Some of the other chief items of this fund are: Revenue from investments, $3,573,519.34; ferry rents, $370,776; market rents, $251,500; interest on deposits, $520,526; installments included in the budget, $2,633,110. More, than $1,000,000 is derived annually from miscellaneous sources, including the sale of various odds and ends of property. The total interest charges on bonds in 1899 amounted to $11,275,822, leaving more than $4,000,000 of the sinking-fund income applicable to reduction of the funded debt. Two features of the financial system of New York that increase expenditures can and should be changed. Taxes are now collected in the last quarter of the year upon an assessment made twelve months before. This compels the city to borrow large sums of money to meet current expenses. In 1899 the city borrowed, in anticipation of taxes, the sum of $48,027,450, on which the interest amounted to $755,704. If the taxes were collected during the first quarter of the year, the city would not only save this three quarters of a million dollars interest on temporary loans, but for six or seven months would have large cash balances in depository banks earning two per cent. This change would be worth approximately $1,500,000 a year to the treasury, but it must be made by degrees in order that taxes shall not be collected twice in a twelve-month. Under the present constitutional restriction upon the borrowing capacity of the city, New York is placed in the contradictory position of getting richer and poorer at the same time and by the same process. The restriction of the debt limit to ten per cent of the taxable real estate is arbitrary, and makes no distinction of obligations. Every time the city acquires additional real estate for parks, docks, schoolhouses, or any other purpose its borrowing capacity and income from taxation are reduced, because the property acquired no longer yields a tax and it is not counted in the valuation upon which the debt limit is fixed. This is the most illogical and unbusinesslike feature of the present financial system. The piers owned by the city are profitable investments, yielding a revenue in excess of interest and sinking fund for the bonds issued; yet if we should acquire $100,000,000 of additional water front now owned by private parties the borrowing capacity of the municipality would be reduced $10,000,000, and the income would suffer the amount of taxes on the land acquired. There should be adopted a constitutional amendment that would separate debts incurred for revenue-yielding investments, such as docks and waterworks, from those created for general public improvements. The former should not be a charge against the borrowing capacity of the city. The budget of the city for 1900 is $90,778,972.48, which will be reduced $9,000,000 by the general fund, leaving some $82,000,000 to be raised by taxation. The magnitude of this outlay for current expenses may be better understood by comparison with the expenditures of other large cities. The approximate current expenses of London last year were $73,000,000; of Paris, $75,000,000; of Berlin, $23,347,600; of Boston, $35,454,588; of Chicago, $32,034,008; of Philadelphia, $27,075,014. In 1899 the State tax paid by the city of New York amounted to $6,275,659, or nearly seventy per cent of the whole; interest on bonds absorbed $11,275,822, leaving $75,813,644 as the actual cost of the current expenses of local government. The gross budget represented a per-capita tax of $24.62 on 3,500,000 inhabitants, of which $19.56 was for local expenses. Of this enormous expenditure more than $35,000,000 is paid out in salaries and wages to 37,000 officers and employees. The Police Department cost $12,000,000 a year, of which $10,700,000 is for salaries. New York has 6,400 policemen. Philadelphia has 2,600, and the annual cost of the department in that city is $3,100,000 a year—much lower in proportion than that of the metropolis. The salaries and wages paid to all regular department employees, including policemen, firemen, street cleaners, and dock builders, are higher than those paid in any other city in the world, and almost without exception the rate has been fixed by act of the State Legislature, and not by the local authorities. In the matter of fixing the pay of officers and employees the city of New York has never known any degree of home rule. The magnitude of the city in wealth and population has always operated against economy in local government. There has existed, apparently, an overwhelming popular sentiment in the city, as well as throughout the State, that such a great municipality should pay the 19 20 M maximum price for everything it might require. If this sentiment had been satisfied by the payment of high salaries and wages it might have been excusable from some points of view; but it was not, and the demand for more money from the public treasury has extended to every class of expenditure. The city of New York is a purchaser in the open market of supplies exceeding in value $5,000,000 a year. This figure applies only to articles purchased without competitive bidding. There is in the charter a provision that all purchases of supplies and labor in excess of $1,000 shall be made by open competitive bidding. This leaves a wide field for fraud and favoritism, and it is an easy matter to evade the spirit and letter of the law relating to competition. If a department requires material and supplies amounting to $10,000, or even $50,000, it is often possible to make the purchases in lots of less than $1,000 from day to day, and thereby obey the letter of the law while permitting the grossest frauds against the city treasury. Under the system that has grown up, protected by this imperfect legal restriction and opinions and decisions to the effect that the city has no defense against excessive claims unless fraud and conspiracy can be proved, robbery of the public treasury has not only been legalized, it has been made respectable. The comptroller, who is by law the auditor of accounts, may be able to show that the city has been charged double or treble the market rate for supplies purchased, yet under the legal opinions and decisions that have prevailed for two years he is not permitted to interpose any defense to an action to recover unless he can prove that there was a conspiracy or agreement to defraud. In the very nature of things it is next to impossible to secure legal evidence of such agreements; therefore the city has been robbed with impunity. The methods of the Tweed ring have long been out of date in the city of New York, and fraud upon the public treasury has become a respectable calling. It is not easy—in fact, not possible—to determine accurately how much the expenses of the city have been increased in recent years by the lax interpretation of an imperfect law and the tolerance of a public sentiment that demands proof of crime on a large scale before becoming aroused to a condition of effective action. It is safe to say, however, that a perfect system of buying in the open market at the lowest prices obtainable, if honestly enforced, would save to the taxpayers more than $1,000,000 a year. Honest and intelligent administration in every department of the city government would reduce expenditures, but the extent of the reduction that might be made would depend largely upon the proper amendment of certain laws, and to an even greater extent upon the development of a thoroughly informed public sentiment that would sustain retrenchment and economy. The expenses of the city are far greater than they should be, but it is going to be a difficult matter to make even an appreciable beginning in economy so long as the State Legislature is permitted to exercise practically unlimited power to regulate the financial affairs of the municipality. Persons and corporations, be they honest or corrupt, when they seek to obtain money from the city treasury for any purpose, are going to proceed along the line of least resistance, and the smooth and open way has long been the Legislature at Albany. Every session of that body adds something to the expenses of the city, and it is a short and dull one that does not add many thousands of dollars to the burden of the New York taxpayers. The revenues of the municipality are so small in comparison with what they should be that it is a difficult matter to find any excuse for the theory of government that existed in the days when perpetual franchises were given away. It is small consolation that the policy of municipal ownership is at last to prevail after so much of the public property has passed into the possession of private corporations. If all the outstanding franchises that were the property of the people had been sold on short terms for percentages even as large as have been fixed in recent cases, the city to-day would drive from that source an annual revenue of more than $5,000,000, instead of the paltry $300,000 now collected. The mistakes of the past, however, are beyond undoing, and the taxpayers must look to the future for relief from the burdens they bear. They are paying now $15,000,000 a year for the sentiment that demanded a city great in all save honesty and political wisdom. Consolidation in fact as well as sentiment must result to prove the material advantage of the arrangement. Public opinion and politicians must realize sooner or later that income and expenses are to be adjusted the one to the other upon sound and enduring principles of business, honesty, and intelligence. There must be a union of public and political interests. Every section of the great city must be brought into close touch with every other section by cheap and rapid transit. The possibilities of the future are greater than the dreams of to-day, but new policies and new methods must and will prevail. The development of Greater New York must not be hampered by a financial system antiquated and imperfect. The city should have power to develop its material resources into revenue-yielding improvements, and then, with honest and intelligent government, the burden of taxation will be reduced to a minimum, and the ideal of the grandest municipality in the world will have been achieved. A BUBBLE-BLOWING INSECT. BY PROF. E. S. MORSE. ANY years ago, while preparing an elementary book on zoölogy, I had occasion to make a drawing of the little insect which is found on grass and other plants immersed in flecks of froth. This substance is commonly known as frog spittle or cuckoo spit, and, being found in the spring, is known in France as “spring froth.” Works on entomology gave the general statement that this insect emitted the frothy mass from its body. Curious to ascertain what peculiar gas-secreting apparatus was contained within its anatomy, I dissected a number of specimens, without finding a trace of any 21 22 23 Fig. 1.—Grass stalk and leaves, showing appearance of froth. Fig. 2.—The insect first emitting a clear fluid which fills up the interspaces between its body and the stem of grass upon which it rests. Fig. 3.—After the lapse of some time it begins rapidly to make bubbles. structure that could produce from within the body a single bubble of air. On the contrary, I found that the little insect emitted a clear, somewhat viscid fluid, and by means of appendages at the extreme tip of its tail secured a moiety of air by grasping it, so to speak, and then instantly releasing it as a bubble in the fluid it had secreted. At the time of this observation—twenty-five years ago—I supposed that entomologists were familiar with this fact, but, on the appearance of my little book, I received a letter from the late Dr. Hermann Hagen, the distinguished entomologist, stating that he had ransacked his library and failed to find any reference of the nature of my statement. Doubtless the whole history of this insect has since been published, but a somewhat superficial survey of the literature has failed to reveal any reference to the matter. In this connection it is interesting to observe how often the more easily accessible facts of Nature escape the special student. The history of science is replete with such instances. One can hardly take up any subject connected with the life history of animals without finding lacunæ which ought to have been filled long ago. The facts in regard to the ossification of the hyoid bones in man is a case in point. The persistence of these erroneous concepts or half-truths comes about by the acceptance at the outset of some fairly trustworthy account by an authority on the subject, and ever after the statements are copied without a doubt being expressed as to their accuracy. If we look over the literature of the subject under discussion, we find that in ne...

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